There are a lot of things you can do with some printers that enable web servers without any authentication at all. Print things, ask to do a scan (people forget things on scanners), view and modify contact lists for FAX and scan to email tools, etc. Definitely potential for "denial of ink and paper" attacks on a printer.

IMO manufacturers should only allow local network access to these devices unless you explicitly set or modify the default login.

Luke has been asked to help open a shopping mall but isn't allowed to fly anymore. So he goes to Han and Lea, asking if they'll fly him cross-galaxy in the Millennium Falcon, now a beat up old ship that's always getting passed on the Kessel run. Unexpectedly, Chewie shows up, having just gotten out of the hospital with a bad case of mange requiring him to shave off all his fur. Along the way there is joy and sadness tinged with melancholy over what was, and in the end they realize it's about their frienships and not mall openings or fur. Guest cameo by Chad Vader as manager of the grocery store in the mall.

Check the Zapruder trace man, there was clearly a second packet on the grassy knoll! If you trace the first one, it came in via the ethernet port, out the USB, then back in via an SD card - which I say is impossible. Had to be a second packet.

For that matter, has your concept artist? That artwork is an absolute load of crap fantasy about what it's like out there. The weather can and will absolutely suck in the winter. And the summers may be nice(r), but you're not talking "lounging on the deck in your swimsuit". Seriously, what are you going to do if a storm blows up and it's 30's seas? Go into port while you close down all work? Watch your work force all call in sea sick?

Here's a summary of Dec/Jan conditions from a NOAA buoy close to the proposed location...

Average wind speed, 10 knots, with peak wind gusts up to 50 (and beyond) at times, which can create 25-30 foot seas. Trust me, 25-30 foot seas suck. You're not doing nothing but point the boat into the waves and riding it out. Average air temperature is about 53 degrees, with the water about the same, so forget swim calls. Maybe go out on deck for a big of an invigorating walk, but then it's back into the ship's interior. Even right now in Spring/Summer, it's blowing 15 knots and the air temperature is 51 degrees.

I'm wondering what's the biggest risk with passwords: having it hacked and either stored decrypted or decrypted later, or having someone guess it? I'm starting to think it's the former, which makes me think there's no point in super complex "try and guess THIS one!" passwords.

As someone who's also been roped into the "teach game development" trap, my advice is to stay the heck away from programming and 3D and any other component that requires specialized skills. If you want the kids to actually finish something, then do what you can to make that happen. Not all of them will be programmers or artists, and you don't want to spend all your time teaching those skills. Plus, it's also pretty common for those that can't program (or model) very well to have really huge ideas that far outstrip their ability to actually deliver - which translates into never finishing.

And to that end, my recommendation is GameMaker, from http://yoyogames.com/ There's a free version, it runs on PC and Mac, it's friendly to non-programmers and programmers alike, and easy to use. Tons of free resources available as well (from good to bad).

If you DO want to move up to the higher production gaming style, consider modding. You can pick up a copy of FarCry for DIRT CHEAP, and it's a very modable game engine with lots of good documentation. Or consider modding Valve's Source (Half-Life 2) engine.

The OP asks, "Why carry out a very expensive launch into space to resupply the ISS..." and the answer is pretty simple...

It's expensive to boost mass up into orbit. 3D printers take raw materials to print with. It's either send up the raw materials for the 3D printer to use, or send up the finished product, and pay for that launch. One could I suppose harvest space junk and asteroids and use that material, but that's not going to come cheap either.

Note, this is the truth of the ISS. Something like a base on Mars or the Moon, that's another story. Then it's worth figuring out how to utilize the local resources to feed a 3D printer.